Proposed.pdf

The E+ Green Building Demonstration Proposal for 61 Marcella Street, Boston, MA, features a energy-efficient design with various components. The heating season load summary shows a total of 11.9 MMBtu/yr, with the majority coming from infiltration (3.9 MMBtu/yr) and above-grade walls (5.3 MMBtu/yr). The cooling season load summary shows a total of 5.0 MMBtu/yr, with the majority coming from windows/skylights (4.6 MMBtu/yr).

The annual energy cost is estimated to be -$304, with a negative total due to the significant contribution of photovoltaics (-$1633). The energy features of the building include a vaulted ceiling with R-15 insulation, above-grade walls with R-10 insulation, and a mechanical ventilation system with an energy recovery ventilator.

The performance summary shows an annual load of 11.9 MMBtu/yr for heating, 5.0 MMBtu/yr for cooling, and 2.2 MMBtu/yr for water heating. The annual energy cost is estimated to be $317 for heating, $48 for cooling, $26 for water heating, and -$1633 for photovoltaics.

The emissions report shows a total of -1.4 tons/year of carbon dioxide, -12.4 lbs/year of sulfur dioxide, and -2.3 lbs/year of nitrogen oxides. The majority of the emissions reduction comes from the photovoltaics, which offset 5.9 tons/year of carbon dioxide, 35.9 lbs/year of sulfur dioxide, and 11.3 lbs/year of nitrogen oxides.